orecasts for years $4$ through $6$ using a$3-$year moving average are $($round your responses to one decimal $$place$)$:

Year

$4$

$5$

$6$

Forecast

$$

$49\mathrm{.}7$

$$

$53\mathrm{.}7$

$$

$55\mathrm{.}3$

Part $7$

For forecasts made using a$3-$year moving$$ average, MAD$=$

$$

enter your response here surgeries $($round your response to one decimal place$).$